Data Analysis and Probability

Lesson 26: Measures of Central Tendency

EQ: What are the measures of central tendency, and how do we find them?
Notes: Lesson261011.pdf
Worksheet: Lesson26Wkst1011.pdf
Measures of Central Tendency
Application of Central Tendency (Video)

Using the TI-83/84

Enter data
1. STAT → 1:Edit...

2. Enter data in a list

3. STAT → 2:SortA(

4. Enter your list: 2ND → 1 for L1, 2ND → 2 for L2, etc.

5. STAT → 1:Edit... to view sorted data


Find mean and median:
1. Make sure data is in your list

2. 2ND → STAT → MATH → 3:mean( or 4:median( and enter your list

Lesson 27: Stem-and-Leaf and Box-and-Whisker Plots

EQ: How do you create and utilize stem-and-leaf and box-and-whisker plots?
Notes: Lesson271011.pdf
Worksheet: Lesson27Wkst1011.pdf
Stem-and-Leaf Plots
Box-and-Whisker Plots

On the TI-83/84

1. Enter the data in a list
2. 2nd → Stat Plot

3. Choose a plot and adjust

4. Zoom → ZoomStat

5. Examine the graph

6. Trace

Lesson 28: Scatterplots and Lines of Best Fit

EQ: How do you use a scatterplot to predict possible outcomes of a situation?
Notes: Lesson281011.pdf
Worksheet: Lesson28Wkst1011.pdf
Scatterplots and lines of best fit

Scatterplots in the TI83/84

1. Enter the data: Stat → 1:Edit...

2. L1 = Independent, L2 = Dependent

3. 2nd, Y= → 1:Plot1...

4. Turn on → Choose scatterplot → Xlist is independent, Ylist is dependent → Choose a mark

5. Zoom → 9:ZoomStat


6. Stat → Calc → 4:LinReg(ax+b)

7. LinReg(ax+b) L1,L2,Y1

• To get Y1: Alpha → F4 (Trace) → Y1 (TI-84 New OS)

• To get Y1: Vars → Y-Vars → 1:Function → Y1 (TI-83/TI-84 Old OS)

8. Graph

• Make sure the Diagnostic is on to see the coefficient of correlation: 2nd, 0 → DiagnosticOn

Lesson 29: Probability

EQ: How do you calculate and apply the principles of probability?
Notes: Lesson291011.pdf
Worksheet: Lesson29Wkst1011.pdf
Probability
More on Probability
Tree Diagrams

Lesson 30: Permutations, Combinations, and Probability

EQ: How do you determine permutations and combinations and use them to find probabilities?
Notes: Lesson301011.pdf
Worksheet: Lesson30Wkst1011.pdf
Combinations and Permutations: What's the Difference?
Permutations
Combinations

Lesson 31: Odds and Probability

EQ: How do you calculate odds in favor or against and compare it to probability?
Notes: Lesson311011.pdf
Worksheet: Lesson31Wkst1011.pdf
Probability and Odds

Lesson 32: Predicting from Data

EQ: How do you data from an experiment to predict further outcomes?
Notes: Lesson321011.pdf
Worksheet: Lesson32Wkst1011.pdf

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